Yup also happens with some us oldies but meh.Hmm, true, that does happen to like every other new member.
That's all well and good but say you have a 1000 posts under your name and then leave the forum for good and actually never come back thats a 1000 posts cluttering the forum, or as you've said what if they come back? Some people change a great deal in a short time and maybe they don't like what they used to post? I think a clean break is better overall.Accounts are already deleted if they're inactive and lack a certain number of posts.
I'm not saying delete the account if they've been gone for 6 weeks or so but 2 years, if you ain't coming back after 2 years chances are high you aren't coming back period.